Analyze overall reactions including reactants and products for photosynthesis and respiration and factors which affect their rates. (pH, temperature, light, etc.)  Conclude that energy production by organisms is vital for maintaining homeostasis and that maintenance of homeostasis is necessary for life. 

The goal of this lesson is to introduce students who are interested in human biology and biochemistry to the subtleties of energy metabolism (typically not presented in standard biology and biochemistry textbooks) through the lens of ATP as the primary energy currency of the cell. Avoiding the details of the major pathways of energy production (such as glycolysis, the citric acid cycle, and oxidative phosphorylation), this lesson is focused exclusively on ATP, which is truly the fuel of life.

Anaerobic RespirationGiving us credit when you use our content and technology is not just important for legal reasons. When you provide attribution to CK-12 Foundation, you support the ability of our non-profit organization to make great educational experiences available to students around the world.Our Creative Commons License welcomes you to use our content and technology when you give us attribution. If you have any questions about our policies, contact us at support@ck12.org

This animation allows students to view the processes of photosynthesis and respiration. In particular, it tackles the common misconception among students that respiration in plants does not take place at the same time as photosynthesis. Teachers' notes are provided.

Submitted as part of the California Learning Resource Network (CLRN) Phase 3 Digital Textbook Initiative (CA DTI3), CK-12 Foundation's high school Biology FlexBook covers cell biology, genetics, evolution, ecology, botany, zoology, and physiology. This digital textbook was reviewed for its alignment with California content standards.

This lesson is about the flow of energy in ecosystems. The setting is Plimoth Plantation, a living history museum in Plymouth, Massachusetts, USA, where students will learn about the first Thanksgiving meal in America, celebrated in 1621 by early American settlers and Wampanoag Indians. By examining this meal and comparing it to a modern day Thanksgiving celebration, students will be able to explore the way in which food energy moves and is transformed in an ecosystem.

Energy for LifeGiving us credit when you use our content and technology is not just important for legal reasons. When you provide attribution to CK-12 Foundation, you support the ability of our non-profit organization to make great educational experiences available to students around the world.Our Creative Commons License welcomes you to use our content and technology when you give us attribution. If you have any questions about our policies, contact us at support@ck12.org

This task could be used as part of photosynthesis instruction or as an assignment before photosynthesis is taught. This lesson was developed by NCDPI as part of the Academically and/or Intellectually Gifted Instructional Resources Project. This lesson plan has been vetted at the state level for standards alignment, AIG focus, and content accuracy.

In this experiment, hydrogencarbonate indicator is used to show the concentration of carbon dioxide in the environment of aquatic animals and plants. Over a 24 hour period, students will explore which combinations of plants and animals make a stable ecosystem in light or dark conditions.

This lesson focuses on energy production in the body through the digestion of food. The concepts covered here involve the expenditure of energy from nutrition and cellular respiration, with a particular focus on the strenuous energy demands of marathon running. For the learning activities, students will design their own menu to prepare for the big race, with careful attention to prevent hitting the wall's situation caused by depletion of a glycogen source in the body during extreme activity.

Students isolate the contributions of three of the four requirements for photosynthesis in leaves. It demonstrates that chlorophyll, light, and carbon dioxide are all necessary for starch to form in leaves.

In this lesson, students will interpret data on the evolution of plants and the change in the atmosphere, and construct a drawn model of photosynthesis.

In this experiment, the rate of photosynthesis is measured by counting the number of bubbles rising from the cut end of a piece of Elodea or Cabomba.

Students investigate the reduction of carbon dioxide to carbohydrate. DCPIP, a blue dye, acts as a electron acceptor and becomes colorless when reduced, allowing any reducing agent produced by the chloroplasts to be detected.

Looking for lichens is an activity that can be done almost anywhere. Students get to search for them in the playgrounds and schoolyards, and they can be used as an indicator of air quality.

In this inquiry-based lab, students will construct an experimental setup to compare the rate of photosynthesis to the rate of respiration. This will make it possible to perform a quantitative analysis of the rate of photosynthesis under different light intensities.

In this lesson students will build and visualize carbon-compounds using a "ball and stick" molecular model kit that includes carbon, hydrogen and oxygen atoms. This lesson also looks at photosynthesis, cellular respiration, biosynsthesis, combustion and hydrocarbons.

Students use a respirometer to measure gas exchange in living organisms, providing a quantitative method of exploring metabolism.